Resonator.



, Patented sept. lo, |901; .1. F. skmnnw.

R E S 0 N A T 0 R.

(Application filed Feb. 15, 1901.)

2 Sheets-Sheet `L (No Model.)

.Hanna 4 l wn Irlll WITNESSES: .7 www# INV-ENTOR .7.1"

ATTORNEYS No. 682,433. vPatented sgpt. lo, |9o

J. F. SKIRROW.

RESONATOR.

(Application led Feb. 15,1901.) n A (No Modal.) 2 sheets-smet' 2.

ATTORNEYS.4

UNITED STATES RESONATOR.

SPECIFICATION forming part of Letters Patent No. 682,433, dated September 10, 1901.4

Application filed February l5, 1901. Serial No. 47.488. (No model.)

To @ZZ whom, zit-may concern.:

Be it known that I, JOHN F. SKLRROW, a citizen of the United States, residing 'at East Orange, county of Essex, State of New Jersey, have invented certain new and useful Improvements in Adjustable Resonators, of which the following is a specification, reference being had therein to the accompanying drawings, in which- Y Y Figure 1 is a verticalsectional View of th device; Fig. f3, an enlarged vertical sectional View showing the detachable connectionv between the sounder-box and the vertical end of the slidable bar; Fig. 3, a similar View of the top ot the pillar-tube; Fig. 4, a similar view of the top of the standard; Fig. 5, a ver-I tical sectional view showing the sounder-box mounted directly on the standard; Fig. 6, a vertical transverse sectional view of the top of the pillar-tube, taken on the line G G of Fig. 3; Fig. 7, a detail horizontal sectional View on the line 7 7 of Fig. 6, the slidable bar being removed; Fig. 8, a perspective of the sounder-box, and Fig. 9 a vert-ical section o f the sounder-box.

`This invention relates to new and useful improvements in resonators; and it has for Vits objects to produce a resonator which' may 'he adjusted to place the sounder-box in any desired position and to so construct the -sounder-box that the sound of the signals will be reflected'therefrom a short distance in one direction only.

Referring to the various parts by numerals, 1 designates ahollow standard or pillar, which is provided at its lower end with suitable supporting-feet. At its upper end this standard or support is formed with a central annular chamber 2, and extending upward into this ,chamber is a vertical central plug 3, of insulation, which is smaller in diameter than the chamber and lthrough which is formed two vertical perforations to permit the wires 4 and 5 of the circuit to pass upward from inside o.f the standard. These wires are flat- .tcned at their upper ends above the plug' to form the spring-contacts 6, which are bent inward slightly, one of said contacts extending a short distance above the other. The

exterior o'f the upper endof the standard is turned to fit the interiorl of the long-pillar sleeve or tuboS, which extends to near the bottomof the standard, the lowerend of the standard being also turned to ft the interior of the tube, aud between these turned por'- tions the standard is smaller than the tube 8, whereby the pillar-tube may be readily slid down over the standard and may be rotated thereon without undue friction. Secured in and closingthe upper end of this pillar-tube is a head-block 9, whichis provided with a horizontal cylindrical passage 1O coincident with the circular openings 1l in the upper end of the tube S. Fitting in this passage is the inner. end .of a horizontal tubular sup-A porting-arm 12, which projects outward therefrom a suitable distance, and within this arm is slidably mounted a tubular rod 13, one end of which is bent upward to forxn'avertical hollow standard orpost it. Aefore this tube is bent a reinforce 15 is slipped over it at the point where it is to be bent, the lower. end of the reinforce being adapted to bear against the outer end of the arm 12and limit the inward movement of the sl-idable rod. A long slot 1G is formed in the under side of this slidable tube, said slot extending from the unbent end of the tubeiinward beyond the middle thereof to form a keywa'y. .l

Secured in the pillar-tube at the base ofthe head-block is a key-'block 17, which is formed with the vvertical rib or key y18, extending across its upper face, said key extending through slots in the head-block and in thev to permit said plate to pass into the arm 12.

The kcyway 16 extends to the unbent or horizontal end of the slidable arm', said end being closed bya screw-cap 20, whose inn'er end is adapted to contactv with the inner "end of the supporting-arm, and thereby limit the outward movement of the slidabl'e arm'. By removing thestopcap 2O vthe sl'idahle arm may be withdrawn entirely from the supporting-arm. The key-block is formed with a de- ICQ pending annular flange 21, which rests on the topr of the standard and supports the pillartube and the parts carried thereby. Secured to the bottom of the key-block within this ange is an insulation 22, and depending from this insulation is a' central cylindrical coutact-post 23, whose lower end is adapted to cuter afceutral socket in the top of the plug 3, said socket forming a guide for the lower endV of the contact and maintaining itin its central position. Surrounding the upper end 18, one of them being connected to thecen` tral post 23 and the other vto vthe contactsleeve 24. The stop-plate prevents the coil of wires being pushed 'over the center of the pillar-tube and becoming caught on the key or on the down ward-turned ends of the wires.

t y Secured in the vertical portion of the slidable rod 13 is a plug 27, of insulation, which is formed with two vertical perforations, through which extend the outer ends of the wires 26. The upper ends of these perforations are enlarged, and within these enlarged openings the wires are iiattened, and above the plug they are bent inward and form spring-contacts28, one of which is longer than the other and terminating below the upper end of the rod 13. Beforethe wires are passed upward through the perforations in the plug 27 they are twisted together to prevent the unwinding of the spiral coil. 'lhelower ends of the perforations in the plug 27 and also in the plug 3 of the standard are enlarged slightly, and a plug of melted metal, preferably solder, is poured therein to forma shoulder on each of the wires to prevent them being drawn up through the plugs. The flattened portions of the wires will prevent their downward withdrawal.

Secured centrally to the base of the sounderbox 30 is a depending tube or sleeve 31, which is adapted to receive within it the vertical portion of the slidable rod 13,"the lower end of this sleeve being adapted'to rest on-the upper end of the reinforce of the slidable rod 13. The exterior diameter of this sleeveis slightly smaller than the diameter of the chamber 2, formed in the standard, whereby said sleeve is adapted to be placed in said chamber and to be rotated therein.

Secured to the 'base 37 of the sounder-box and centrally within the sleeve'isadepending cylindrical contact-post 32, which `.issinilar to und ofthe same size as the contact-post carried by the key-block. Secured to the base of the sounder-box and surrounding the upper end of this contact-post and insulated therefrom by a tube 33, of insulation, is'a contact-sleeve 434, which is similar to and oi' the same diameter as the contact-sleeve carried by the key-block. The lower end of this contact-post' is adapted to fit in a socket 35, formed in the top of the plug 27, when the sleeve 31 is placed over the vertical end of the slidable rod 13, as shown in Fig. 1, and in the socket formed in the top of the plug'3 when the sleeve is placed in the chamber 2 of the standard, as shown in Fig. 5. In either of these positions the shorter contact carried by the permanent plugs engages the post, while the longer contact engages the sleeve, as clearly shown in Figs. 1 and `5. It will thus beseen vthat the pillar-tube and the parts carried thereby maybe removed from the standard and the sounder-box placed directly thereon, its sleeve 3l fitting snugly but rotatably in the chamber 2 thereof. The post l32 and the sleeve 3l are connected to the sounder by the insulated wires '36.

The whole device is rotatable upon the standard, and the sounder-box is rotatable .upon the upward-extended end of the slidable rod, said rod being slidable through the sup-l porting-arm to enable the operator to place the sounder-box at the desired distance from him. When the sounder-box is moved'away from the standard, the coil of wires 26 are ICO drawn 4outras shown in dotted lines in.Fi0*.

4.The sides" and the back piece are rigidly secured together and are hinged to the hase at` the rear edge thereof, so that they may be swung rearward and downward, as 'shown in dotted lines in Fig. 8, to expose the sounder ou all sides. The back piece inclines at approximately fifty degrees, as that has in practice been found the most desirable angle for reflecting the sounds from .the sounder secured within the box. The sides and back piece of the sounder-box are preferably made of some non-resonant or souiidideadening material, such as hard fiber, lino'leum, strawvboard, or 'similar material.

To the exterior of the pillailtube and to the top of the back piece are secu red outwardcurved rigid strips 40, and to the inner sides IIO of these strips, near the outer ends thereof,

are secured yspring clamping-fingers 41, the finger which 1s secured to the strip carried.

Vit above the base-piece 'without imparting to it Vwithout any bythe pillar-tube extending inward and bearing upon the tube and the finger secured to the strip carried by the back piece extending inward and bearing atits inner end against the back piece. These clampigfingers are adapted to hold the message-sheets.

The sounder is removably secured in the sounder-boxby means of a vertical screw 42, which extends vertically through the base of the sounder and through the. base-piece of the sounder-box, its lower end being provided with a thumb-nut 43. The sounder-base is provided with the usual pins eti, which raise of the sounder-box, and surrounding the screw ,42 is a block 45, which is slightly narrowerfthanl the space between the base-piece of the sounding-box and the base of the sounder. This permits the screw to spring the sounder-base down-ward slightly until it contacts with the block 45, thereby securely clamping the sounder in place and avoiding the danger of splittingits base. Metal strips 46 are permanently se cured to thebase-piece 37and are adapted to be clamped tothe binding -posts of the sounder, said strips aiding in holding the sounder in place and being connected to the wires 36.

In .the ordinary .the object is to increase the strength of the `signals from the sounder and to give to them a resonant quality to enable the operator to readily hear them. The result is that the sound of the signals is carried far lbeyond the operator who is receiving them and causes a confusion of signals where a number ofsound# ers are in use in the saine room. In the present invention the object is to .deaden the sound and to concentrate it at the sonnder' box to prevent it traveling beyond the ears of the operator who is receiving the signals. For this reason the hack piece and the sides of the sounder-box are formed of some nonresonant material to concentrate thesouud aresonant quality, and the sounder-box is rotatably mounted on the slidable rod, and said rod is rotatable around the standard to enable the operator to place the open front of the sounder-box close to his ear. f

lVith a sounder-box of this construction a non-adjustable sounder and a comparatively weak current in the local circuit are employed. As the sounds do not travel beyond the operator who is receiving them, it will be readily seen that a large number of Sounders may be in use at the same time and in the same room confusion of signals.

Having 'thus fully described my in ventiou, what I claim, and desire to secure by Letters Patent, is-

1. In a resonator, the combination ot a standard, two separated contacts carried by said standard, a sounder-support removablyl and rotatably mounted on 111e standard,.a

pair of contacts carried vbythe sounder-supcarport and adapted to engage the contacts ,the sleeve and adapted sounder-boxes now in use'l `trally-monnted plugot` said wires moving and adapted to engage the contacts carried v by the standard and to remain in engagement therewith during the rotation of the rotatable part, a sounder support carried by the rotatable part,- anda pair of insulated wires connected to the contacts within the rotatable part and adapted to be electrically connected to a sounder. l y,

3. The combination, of a standard formed with a central chamber, a pair of separated contacts extending upward into said chamber one ofsaid contacts being longer than the other,a sleeve adapted to be removably and rotatablysupportedby the standard, a depending contact-post supported centrally within contact carried by the standard,a contactsleeve surrounding the contact-post and in; sulated therefrom and adapted to engage the longer contact carried by the standard, a soundeusupport carried bythe sleeve, and means for electricallyconnecting the contact Wit-hin the sleeve to a sounder.

4:., The combination, of a support, a vertical plug ol" insulation mounted centrally in the supportand formed with a central socket in its top, a pair of separated contacts carried b vsaid plug,one of said contacts being shorter than the other', a removable and rotatable sleeve, a depending contact-post supported centrally within the sleeve its lower end being adapted to enter the socket in the plug carried by the support and to engage the shorter contact, acont-act-slceve surrounding the contact-post and engaging the longer contact, a sounder-support carried within the sleeve and adapted ally connected to a sounder.

5. Thecombination, of a support, a ceninsulation carried by the support, a pair of wires extending through said insulationl and flattened at their upper to be electricends to form spring-contacts and to,pr =3v,entv

their downward removal', means to prevent upward through the plug, a sounder-support adapted to be mounted on the support,a pair of contacts carried thereby and adapted to engage the contacts carried. a pair of wiresconnectedz -to the contacts carried bythe sounder-supby the support, and

port and adapted to be electrically connected to a sounder.

G. The combination, ot astandard, a pair ol' contacts carried thereby, mounted on the 'standard nnd'carrying a pair of contacts adapted-'to engage the contacts on the standard,'a rod carried bythe relatan to engage the shorter' by the sleeve,v and a pair of wires connected to-the contacts4 ICE IIC

a rotatable part -connecting the contacts ble part, a sounder-box rdtatably and removably mounted on said rod, a pairot Wires connected to the contacts carried by the rotatable part on the standard and adapted to be electrically connected to a sounder in the sounder-box.

7. The combination, of a standard, a pair of contacts carried thereby, a rotatable part removably mounted on the-standard and carrying a pairof contacts adapted to slidingly engage the contacts carried by the'standard, a rod carried by the rotatable part, a sounderbox rotatably mounted on said rod', a pair of wires connected to the contacts carried by the rotatable part on the standard and adapted to be electrically connected to a sounder in the sounder-box. l

S. The combination, of a standard, a pair of contacts carried thereby, a rotatable part, a pair of contacts carried thereby and adapted to engage the contacts carried by the standard, a rod carried by the rotatable part, a sounder-'box rotatablymounted on one end of this bar and sld'ably removable therefrom, a pair of comm-,ts carried by the bar, a pair of contacts carried by the sounder-box and adapted to slidingly engage the contacts carried vby the bar, .and means for electrically carried by the rotatable part on vthe standard to the contacts carriedby the end of the bar.

9. The combination, of a support, a'pair of contacts carried thereby, a rotatable part removably mounted on the support and carrying a pair of contacts adapted to engage the contacts carried by the support, a slidable rod carried by the removable part, a sounder-support carried by the rod, a-nd means adapted to electrically connect the contacts on the removable part to a sounder on the sounder.-

- support.

with the contact on l0. The combination, of a support, a pair of contacts carried thereby, a rotatable part mounted on the support and carrying a pair ot'contacts adapted to engage the contacts a slidable rod carried by the rotatable part, a pair of contacts carried by said rod at one'end thereof, a sounderbox'rotatably and removablymo'unted on the end of the slidable rod and carrying a pairof contacts adapted to engage the contacts on the lslidable rod, and means for electrically connecting the contact on the removable part the end of the slidable rod. Y

1l. The'combination, of a support, a pairof contacts carried thereby, a sleeve lremovably and rotatably mounted' on said support', a pair of contacts carried by said sleeve and adapted to engage the contacts carried by the support during the rotation of the sleeve, a horizontal rod slidably mounted in said sleeve, a sounder-box mounted on one end of the slidable rod, and means for electrically connecting. the contacts 'carried b'y the sleeve 'to a sounder in the sounder-box.

12. The codmbination, of a standard, a sleeve rotatably mounted-thereon, a pai r of contacts carried by the'standard,A a pair of contacts carried by the sleeve and adapted to engage the contacts carried by the standard,'a horizontal yslidable rod carried by the sleeve, a rotatable sounder-box mounted on one end of said rod, land means for electrically connecting the contacts carried by the sleeve to a sounder in the sounder-box. v 13. The combination, of a standard, asleeve rotatably mounted thereon, a pair of contacts mounted on the standard, a pair of contacts supported within the sleeve and `adapted to engage the contacts carried by the standard, a horizontal slidable tubular rod carried by the sleeve, a sounder-box carried by said tubular rod, and a pair of slack wires in said tubular rod, each of said wires being connected at its inner end to one of the contacts carried bythe sleeve, the outer ends of said wires beingadapted to be electrically connected to a sounder vin the sounder-box.

14. The combination,of table sleevemountedon said standard,'a pair a standard, a rota?d of contacts mounted in the standard, a pairw' of contacts supported within-the sleeveq'and adapted to engage the contact/'s supportcdb the standard, a sli in said sleeve, p end of said slidable rod, a pair of insulated lwires coiled within the tubularrd, the inner end of each of said Wiresbeing connected to one ot the contacts carried by the sleeve, the

other ends of said wires being permanently secured at the outer end of the slidable rod adjacent the sounder-box, and means for electrically connecting the outer ends ot' said wires to a sounder in thesounderbox- 15. The combinatiomo' a standard, a sleeve rotatably mounted on said standard, a pair of contacts within the standard, a pairuot contacts carried by the sleeve and adapted to engage the contacts carried by the standard, a slidable tubular rod carried by said sleeve, a pair of wires loosely coiledwithin said rod, the inner end of each of saidwires being con-` nected to onefot the contacts carried by the sleeve, the outer ends of said wires being secured lpermanently at the outer end of the electrically connecting the contacts carried by the sounder-box to a sounder within said box.

16. The combinatio'mof a standard, a sleeve rotatably mounted on said standard, a pair of contacts carried 'byzthe standard, a pair ot contacts carried by the sleeve and adapted to v engage the contactsearried by the standard,

a horizontal slidabletubular rod'mounted in said sleeve, a pair of insulated wiresloosely coiled within said vtubular rod, a stop-plate carried by the rotatable sleeve'and extend- Ping into the tubular rod and confining the coil between said stop-plate and one end of slidable rod,

l rotatably mounted on said the slidablerod, the innerI end of each o ne of said wires passingthrough the stop-platea'nd being connected t'o one of the contacts'carried by the sleeve, the outer ends of said wires being permanently secured to one end ofthe sli dable.rod, a I sounder-box Amounted on the a pair of contacts carried by said sounder-box and adapted to engage the outer ends of the coiled wires.

17. The combination,of a standard,asleeve standard, a pair of contacts carried by the standard, a pai'r of contacts within the sleeve, a slidable tubular rod carried by the rotatable sleeve, said Arod being extended upward at one end and pro# vided with a longitudinal slot in its under side, a key secured to .the rotatable'sleeve and extending into the slot inthe slidable bar toprevent the rotation of said bar', a

sounder-box mounted on the upward-extended, end ofthe slidable bar, andv means for electrically connecting the contacts carried by the sleeve toasounder in the sounder-box. 18. The combination ,of a standard, a sleeve rotatably mountedon said-standard, a pair of contacts carried by the standard, a pair ofv contacts carried within the sleeve, a slidable tubular rod carried by the rotatable sleeve,v

said rod` being extended upward at one'end and provided with a longitudinal slot in its' under side,` a key secured to the rotatable sleeve and extending'into 'the slot inthe slidable bar to prevent the sounder-box rotatably and removably-mounted on the upward-extended end of the rod, a pair of contacts carried by the sounder-box and extending into the slidablerod, a pair of vthe sleeve, ing-arm and having one of its ends upward, a sounder-box on the upward-exand'means contacts in said rod and engaged by the contacts on the sounder-box, and means for electrically connecting the contacts in .the rota'- table sleeve to the contactsin the end ofthe i slidable rod.

19. The combination, ofastandard, asleeve thereon, a pair of contacts in the standard, a pair ofv contacts horizontal tubular supporting-arm carried by a slidable rod-in .said supportextended tended end of the `slidable rod, for electrically connecting the contacts in the sleeve to a sounder in the sounder-box.

20. In combination, a standard formed with `a entral vertical chamber at its top, a pai-r of contacts extending into said chamber, a

'removable rotatable part on the standard, a

pairof cuntacts carried by the rotatable part,

part, one end of said rod being extended vertically, a sleeve adapted` to t over the vertical end of the slidable rod and in thechamber'in the top of the standard, a pair of conrotation of said bar, a

carried by the sleeve, a

a slidable rod supported by the rotatable tacts in the vertical end of the slidable rod similar-to the contacts in the standard,`a pair of contacts carried within the sleeve and ,adapted to engage the contactsy in thes'taud- `bar being extended vertically, -a pair of contacts insaid vertical end of the bar, Ia pair of slack wires connected to the contacts in the sleeve'and to the contacts in the end of the bar, a rotatable sleeve fitting the verticall end of the slidable barand adapted to fit the chamber in the standard, a contact-post'cen- 'trally monntedin this sleeve and surrounded by a con tactsleeve,said contacts being adapted to engage the contacts in the standard or those in thevertical end of the slidable bar, land a sounder-box carried by the sleeve ou the end of the bar. 22. A 'sounder-box comprised of a base, and asound-reecting section hinged thereto,substantially as described. 23. Incoinbination, a standard, a removable rotatable ard, a slidable part: t cneouter end of said rod andthe top of the standard when the rotatable part is repart tting'on top of the standrod supported by the rotatable or in the slidable rod, asounder-box car-v a contact-sleeve surround a sounder-support adapted to slidably loo moved, whereby said sounder-support may be placed on the rodV or on the standard, as

desired, substantially as set forth.

214-. Asounder-box comprised of a base, and a sound reecting section hinged thereto to adapt it to be swung below the consisting ofthe side pieces and the upwardinclined back scribed,

'25. -In combination, a sounder-box consista sounder mounted on said base and provided with supporting-pins, a screw extending through the sounder-base and the'base ofthe sounderbox,and a block -between lthe base of the sounder and the baseof the sounder-box, substantially as described.

. In testimony signature, in the presence' of .two,.witnesses, this 14th day of February, 1901.

- v JOHN F. SKIRROW. Witnesses:

CHARLES. SHIRLEY, WM. R. DAvIs.

base-piece and 4 piece, substantially as de-y I IO `ing of a baseand a' sound-reflecting section, 

